Technical & Reference Section > Tech and Restoration

Pro Class

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bobafett:

Pro-Class = Alloy rims, Alloy hubs - Alloy finish
Pro-Class II = Alloy rims, Alloy hubs - Chrome finish with black nipples (these were stock on the pro-class complete)
Pro-Class III = Alloy rims, Alloy hubs - Hard annodised finish to rims, Alloy finish to hubs.
Pro-Steel = Steel rims, Steel Hubs - Chrome finish

There were other incarnations after 86 but since I only collect up to 86 details are a tad sketchy.......

Pro-Class V = 48 spoke Alloy rims - Chrome finish OR White
Pro-Class VI = 48 spoke Alloy rims without holes - Hard annodised finish to rims, Alloy finish to hubs.


Fook knows what happened to pro-class IV ? Someone must have fooked up in the mongoose counting department  :LolLolLolLol:

Do you want more details on what hubs etc. ? and timelines for era correctness or was it mainly the rim types ?  ???

 :daumenhoch:

DY85262:
Great stuff. Thanks a bunch for sharing knowledge. It was rim specific as I would love what appears to be a set of factory polished Pro Class II rims that were available seperately.

Just one question the sticker that goes around the valve hole, red or black with Pro class I, II, III specific?

Ohh yes were the rims drilled araya's and di they have any stamps on them?

Cheers Bobafett

"C.J."

bobafett:

Dunno about "factory polished" mate - if they are pro-class II they should be chrome  ;)

As for the decals - they are round decals on the pro-class I,II and pro-steel but on the proclass III it's a gold square/rectangular decal.

As for drilled arayas there's a few pictures of ones existing with original araya stamping on them but with the pro-class holes in - rare originals ? aftermarket holes added to standard 7x by the user ?

Let's just say that other than those there's no stamps on other "standard" pro-class rims.

hunterdubber:
I also have some silver Pro class rims on my GT Nora pro

These came on the bike when I picked it up

The owner said he swapped them with a lad with a Supergoose BITD .

They have low flange Shimano hubs

Standard fitment , then??

bobafett:

Yeah shimano where one of the stock hubs used Christian.

Roughly speaking as a "general" guide it kinda goes like this..........

82/83 Shimano Hubs
83/84 Suzue Hubs
85/86 SR hubs
87/88 ?
88/89 ACS Hubs

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